package com.company.基础.Array.twoDimensional.exer;

/**
 * 回行数
 */
public class Array4 {
    public static void main(String[] args) {

            int n = 7;
            int[][] arr = new int[n][n];

            int count = 0; // 要显示的数据
            int maxX = n - 1; // x轴的最大下标
            int maxY = n - 1; // Y轴的最大下标
            int minX = 0; // x轴的最小下标
            int minY = 0; // Y轴的最小下标
            while (minX <= maxX) {
                for (int x = minX; x <= maxX; x++) {
                    arr[minY][x] = ++count;
                }
                minY++;
                for (int y = minY; y <= maxY; y++) {
                    arr[y][maxX] = ++count;
                }
                maxX--;
                for (int x = maxX; x >= minX; x--) {
                    arr[maxY][x] = ++count;
                }
                maxY--;
                for (int y = maxY; y >= minY; y--) {
                    arr[y][minX] = ++count;
                }
                minX++;
            }

            for (int i = 0; i < arr.length; i++) {
                for (int j = 0; j < arr.length; j++) {
                    String space = (arr[i][j] + "").length() == 1 ? "0" : "";
                    System.out.print(space + arr[i][j] + " ");
                }
                System.out.println();
            }
        }
    }

